Liquid-dispensing apparatus



Get. 21., 1923. v 1,469,617

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dispensing apparatus Patented Oct. 2, 1923.

UNITED STAT PATENT OFFICE.

JOHN A. BRYDEN, 0F SPRINGFIELD, ILLINOIS, ASSIGNOR 0F ONE-THIRD T0 UBIAHB. HCCUTCHEN A ND ONE-THIRD TG JAMES A. HALL, BOTH 0F SPRINGFIELD,ILLINOIS.

LIQUID-DISPENSING APPARATUS.

Application led December 20, 1920. Serial No. 431,981.

.To all /wzo/m, 'it may concern.'

Be it known that I, JOHN A. BRYD'EN, -acitizen of the United States,residing at Springfield, in the county of Sangamon and State ofIllinois, have invented certain new-and useful Improvements in Liquid-Dispesing Apparatus; and I do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

The present invention relates to liquid and is especially adapted fordispensing gasoline in a gasoline filling station for motor vehicles,although it may be used to advantage for other purposes.

Briey stated, the invention includes an underground storage tank, a pairof visible measuring vessels supported above the ground, means forcausing liquid to How from the storage tank to the measuring vessels,and valve mechanism whereby one of the measuring vessels is caused toempty while the aforesaid means is caused to operate to fill the othermeasuring vessel, this valve mechanism also serving to prevent bothmeasuring vessels from bein emptied at the same time and to prevent t eaforesaid means from operating to fill both measuring vessels at thesame time. The valve mechanism is therefore a very important feature ofthe invention, this'being especially true because it consists of variousvalves connected to operate in unison and all mounted in and upon asingle casing. Furthermore, the valve mechanism is constructed so thatthepossibility of leakage is reduced to a minimum.

Another important feature of the invention is the provision 4of meanswhereby the liquid may be measured with a high degree of accuracy, themeans for accomplishing this result not being susceptible tol variationcaused by wearing of the parts of the mechanism'or the like.

A. further important feature of the invention is the provision of ahousing inclosing the principal parts v of the appara-tus anddrainage'means operatively connected to the door of 'the housing wherebythe contents of both-measurin vessels will beA caused to `drain backinto t `e stora e tank automatically upon the closing of t e door.

The invention consists of the novel features of construction, and thecombination and arangement of parts hereinafter described and claimed.

The descriptive matter of the following specification is supplemented bythe accompanying drawings, in which:

Figure 1 isp-a front view of an apparatus constructed in accordance withthe l invention; A

Figure 2 is a side elevation of the apparatus, a portion of the housingbeing removed;

Figure 3 is an enlarged front view, partly in section 'of the principalportion of the apparatus;

Figure 4 is'a side elevation mechanism;

Figure 5 is a top plan view ofthe valve mechanism;

Figure 6 is a central vertical longitudinal sectional view of the valvemechanism;

Figure 7 is a central horizontal longitudinal sectional view Aof thesame;

Figures 8, 9 and 10 are transverse' sectional views taken respectivelyon the planes indicatedby the lines 8 8, 9-9 and 10r-10 of Fig. 6 andlooking in the direction of the arrows;

Figure 11 is a transverse sectional view of the valve ltaken on theplane indicated by the line they valve mechanism in its neutral orintermediate position;

,Figure 14 isa of the valve mechanism taken onthe plane as indicated byvthev line" 1414 of Fig. 6; and l Figure llis a view of exterior valveplate.

In thedrawings above briefly described, similar reference numerals areused to' des' nate similar parts ofithe apparatus throng `i the innerface of the transverse sectional view 1w -right position upon thesurface of the ground or upon any other suitable support. This tank 1forms the supporting standard for a housin 2 provided at its front sidewith a hin door 3, and for a platform 4 havin disposed thereabove inspaced" relation t creto a roof 5, which preferably forms the. supportfor a suitable light 6.

Supported upon the' platform 4 is a right.

hand` measuring vessel 7 `and av left hand measuring veel 7 both ofwhich are made of glass cylinders so that their contents may be easilyobserved. While the exact construction of the measuring vessels and themanner in which they are mounted upon the platform 4 forms no part ofthe present invention, yet it will be stated that the platform trisprovided with a pair ofA upstanding bosses 8 -and 8 providedrespectively with seats 9 and 9 for receiving the lower ends of thevessels 7 and 7 respectively,A

that'heads 10 and 10 are seated upon the upper ends of the vessels 7and- 7 respectively to form the upperends of the vessels and that theseheads are clamped to the platform 4 by means of a number of bolts 11.

Submerged in the ground preferably directly below the vacuum tank 1 andthe mechanism supported thereby is a gasoline storage tank 12.. Thistank 12 may be filled and refilled through la pipe 13 which leads fromthe tank to a point above the ground, and in order to permit air toenter the tank 12, a pipe 111 is led from the tank-upwardly back of thevacuum tank 1 into 'the housing 2 and upwardly back of the measuringvesls 7 and 7 to tenminate directly below the roof'. The] npperend ofthis pipe-14 is left open. The measuring vessels 7 and 7 are suppliedwith gasoline from the storage tank 12 by means of supply pipes 15 and15y res ively, which, as .willbe seen, pass upwar y lfrom the tank 12.lback o the vacuum tank 1 into thev housing 2 and then upwardly behindthe measuring vessels and thence leadinto' the same, being connected bymutable unions to the heads. an'd 10'.

central openings-1f '6j-and 13 merging attheiry lower ends intonecks towhich are 'connected short nipples 17 and 1,7 lres tively, which'in arecentred/ed te v 'shaped mesma castings 18 and 18. Threaded to one of thenecks of the castings 18 and 18 so as to be adjustable longitudinallywith respect' to said castings are pipes 19 and 19 respectively. Thesepipes 19 and 19 extend upwardly through the castings.v 18 and 18. thenipples 17 and 17', the openings 16 and 16 .and into the vessels 7 and 7respectively, and terminate predetermined distances below the heads 10and 10. The longitudinal adjustment of the pipes 19 and 19 is such thatthey serve to carry .out of the vessels all gasoline allowed to passtherein in excess of a predetermined or measured amount, for instance,five gallons. The lower ends of the pipes 19 and 19 extend below thecastings 18 and 18 respectively, and are connected in any suitablemanner to short pipes 2O and 20 respectively, which in turn areconnected to suitable 4 unions 21 and 21 respectively arranged in thesupply pipes and 15 respectively. It will thus 'be seen that theoverflow from the measuring vessels passes from the overflow pipes 19and 19 to the supply pipes 15 and 15 respectively and thence through thelatter back into the storage tank 12.

The valve mechanism of the apparatus is mounted in and upon a singlecasing 22 which is provided intermediate of its ends witha partition 23cast integral therewith,

and at points adjacent said partition and on diametrically oppositesides of the casing with induction openings 24 and ,211. These openings24 and 24 lead respectively into passages 25 and 25 which extendlongitudinally through the vpartition 23 and communicate with thechambers 26 and 27 formed in the casing by said partition. The casing 22is provided with an eduction opening 28 leading into the chamber 26 andwith an eduction opening 29 leading into the chamber 27.

The ends of the body of the casing 22 are internally threaded and theend adjacent; the chamber 27 receives a plug 30, while the end adjacentthe 4chamber 26 receives a lug 31.

he plug 30 is provided with a central longitudinally extendinginternally threaded o ening 32 in which is threaded for lon gitu inaladjustment a smaller plug 33 having a central longitudinally extendingopening 34 therein which merges at its inner end into a recess 35 forreceiving packing material 36 `and the inner end of apacking boxland-37. rllhis gland I37 is'jprovided wit a longitudinally extendingcen- Itral opening 38 aligned with the opening 3d and with anannularshoulder 39 fon its outer end,

The end of the partition 23 adjacent the chammr 27 istdnished ormachined'to :form e valve seat a9. linrnablymounted in the llt) chamber27 and seated flat against the valve seat is a valve head in the form ofa plate 41. This plate 41 is provided with an eccentrically locatedopening or passage designed to establish communication between eitherone 0f the passages 25 or 25 .and the interior of the chamber 27 andconsequently with the eduction opening 29 .when positioned inregistering relation with site sides adapted tolitubetwecn fthe-parallelwalls of the recess 43, and its end configuration is shaped tocorrespondto the concavity of the li"e'cess"43"so that the plate' 41 will be atall times seated against the valve seat 40 irrespective of variations inthe direction which Ythe stem extends.

The inner end of the stem 45 adjacent its head 44 carries a disk 46which forms a thrust bearing for a ball race 47 turnably mounted uponthe stem 45 and against which bears a disk or sleeve 48 turnably mounted'upon the stem 45. Interposed between the disk48 and the collar 39carried by the gland 37 is a coiled spring 49. This coiled spring acts'so as to maintain the valve plate 41 seated more or less tightlyagainst the valve seat 40.

A portion of the plug 30 extends beyond the adjacent end of the body ofthe casing 22 and arranged in this portion of the plug are two sets ofcompanion ports or recesses 50 and 51 and 50' and 51', the ports 50 and51 constituting one set and being disposed at one side of the plug whilethe ports 50 and 51 constitute the other set and are disposed at thediametrically opposite side of the plug. The ports extend radially intothe plu and the ports 50 and50' are provided wit orces 52 and 52respectively which lead longitudinally outwardly. The ports 51 and 51'are provided with orfices 53 and 53' respectively and'54 and 54', all ofwhich extend longitudinally outwardly The orilices 52, 52', 53 and 53are all equal distances from the centrallongitudinal axis of the valvemechanism, while the orifices 54 and 54 are spaed radiallyoutwardly away`from the orifices 53 and 53 butv arc ual vdistances from thecentraldlongitu- -dlnal axis of vthe valve mechanism.. The ports orecesses 50, 50', 51 and 51 are internally threaded or otherwisesuitably adapted to receive pipes.

Formed on the outer side of the plug 30 and extending outwardlytherefro'm is an.

annular flange 55, upon which is turnably mounted a valve plate 56. Theouter side of the .plug 30 is finished or machined to form a valve Aseat57 for this valve plate 56. The inner side or face of this valve plate56 is finished or machined so that it will fit absolutely flat againstthe valve seat 57 and it is provided with a short arcuate passage 58 anda comparatively long arcuate passage 59, the ends of which merge intovent openings. The passage 58 has its curve centered at a pointco-incident with the axisrgf the valve mechanism and is spaced radiallyfrom said axis the same distace that the orifices 52, 52', 53 and 53 arespaced from this axis. The passage 59 has its curve centered upon thesame axis and it is spaced radially from the-latter the same distancethat the orifices 54 and 54 are spaced` therefrom. This arrangementY issuch that the platefft may bepositioned so asV toeause.the.pa$age 58 toregister with the orifices 52, '52',"253 and 53 and so as to cause thepassage 59 to register with the orifices 54 and 54. Y

A portion of the plug 33 extends beyond the plug 30 Yand the4 flange 55,and threaded upon this portion of the plug 33 so as to be adjustablelongitudinally thereon is a collar 60, the inner side of which isprovided with a series of recesses 61 in which are seated coiled springs62 which bear against the outer side of the valve plate 56 and maintainthe latter seated against the valve seat 57. A

Projecting outwardly from the outer side of the valve plate 56 andlocated eccentrically with respect to the longitudinal axis of the valvemechanism is an extension or other suitable member 63, which extendsslidably through an opening 64 formed in the outer end of an arm 65which in turn is fixed upon the vstein 45 and extends radiallytherefrom. By this construction. it will be seen that whenever thevstem. 45 is turned, a corresponding movement will be im arted to thevalve plate 56, and

late 56 is mounted so that also since the valve plate since t e valve 1tcan'yleld an A41 and the stem 45 may yield longitudinally,

the coupling of the valve plate 56 with the stem- 45 through the mediumof the extension -63 and arm 65 will permitfthis yieldn order tol'operate the stem 45 a handle 66 is fitted upon its outer end, and inorder to limit the movement of the mechanism so far described, the valveplate 56 is provided with laterally extending lugs 67 and 67 adapted toengage the opposite sides of a forwardly projecting stop 68 carried' bythe plug 30.

The side of the partition 23 adjacent thel chamber 26 is finished ormachined so asto form a valve Aseat 69 against whiclrbears a.

valve head or plate 7 0, which is turnably mounted in the chamber-x-26.v This valve plate 70 is provided with a pair of oppositelydisposed eccentric passages or open ings 71 positioned so as to registerwith the passages 25 and 25, and on its outer side with a recess 72similar to the recess 43 of 'the valve plate 41. This recess 7 2 isadapted shown, the outer end of the stem 74 projects beyond the outerside of the plug 31 and its packing box 75 and has fitted thereto an arm76.y

Connected to the top ofthe vacuum tank l is I a T-coupling 77 to whichare coupled pipes` 78 and 78 leading to and connected to the ports 50and 50 respectively. Connected to and leading from the ports 51 and 51are what may be termed combined vacuum and vent pipes 79 and 79respectively, which in turn lead to and are connected to the upperendsor heads of the vessels 7 and 7 respectively. The induction openings24 and 24-l of the valve casing 22 are connected by means of shortnipples 80 and 80v respectively to the castings 18 and 18 respectively,and the eduction opening 29 of the chamber 27 has a delivery hose 81connected thereto, while the eduction opening 28 of the chamber 26 has apipe 82 `connected thereto, which pipe 82 extends and is connected tothe coupling 21 so that it communicates with the supply 79 and 79respectively, into comm pipe 15.

In order to vent the chamber 27 the' bodj.7 of the valve casing 22 isprovided with an opening 83 in which is fitted the lower end of a ventpipe 84, the upper end ofwhich terminatesat a point a short distancebelow the roof 5. The upper end of this vent pipe V 84 is left open.

Disposed within the measuring vessels 7 and 7 and secured to anddepending frpm the heads 10 and 10 respectively, are guides 85A and 85respectively, in which are mounted float valves 86 and86 respectivelyuf,trolling the opening and closinginf th "the arm 89 is p'i-votallyyconnected to a link 91 which isVinQturn connected in apivotal manner tothe door 3. By this construction,

whenever the door 3 is swung upon its hinge, a turning movement will beimparted to the valve plate 70. Y

The operationlaf the apparatus is as follows -Assuming that the door'` 3of the housing 2 is open as indicated in Figs. l and 2 of the drawings,the valve plate 7() will be disposed so that the passages 25 and 25 inthe partition 23 are. closed to communication with the chamber 26. Suchposition of the valve plate is indicated in Figs. 6, 7 and 10 of thedrawings. Further assuming that the handle 66 fitted upon the valve stem45 is in the position shown in Figs. 1, 2, 3, 6, 7 and 13, which is theneutral or intermediate position of the handle and mechanism operable inunison, therewith, the valve plate 41 will be positioned so that thepassages 25 and 25 in the partition 23 will be closed by the valve plate41 to communication with the chamber 27, as clearly shown in Figs. 6, 7and 8. As clearly shown in Fi 13, the valve plate 56 will be positioneso that portions of the passage 59 will .register with both orifices 54and 54. In this position of the valve plate 56, the air entering theends of the passage 59 will ass through the orifices 54 and 54', the pors 51 and 51', the pipes 79 and 7 9, and into the measuring vessels 7 and7 It must be further assumed that the right-hand measuring vessel 7 isfilled with liquid up to the level of the upper end of the overflow pipe19, and also that thc float valves 86 and 86 areA in open position.

With the lforegoing position of the parts clearly in mind, should it bedesired to dispense or deliver the contents of the vessel 7 by way ofthe delivery hose 81, it is only necessary to move the handle 66 to theright -until the lug 67 carried by the valve .plate 56 engages theleft-hand edge of the stop 68. In so moving the handle 66 to the right,the stem 45 will be turned and a corresponding movement will be impartedto the valve plate 41. positioned so that its passage or opening 42 willbe disposed in registering relation with the passage 25 in the partition23, and communication will thereby be established lier tween theright-hand measuring vessel 7 and the delivery hose 81. Since the valveplate 56 is connected to the stem 45 so as to be operated in unisontherewith and with the valve late` 41, when the handle 66 is moved to te right, the valve plate 56.will` lli@ The valve plate 41 will now bemaaar? and having its outlet at the bottom opened p to communicationwith the delivery hose 81 will permit 'its contents to pass out of thesame through the opening 16, nipple 17,

ing 24', passage 25', passage 42, chamber '27, and opening 29. After theright hand casting 18, nipple 80, opening` 24, passage measuring vessel7 has been thus filled and valve passage 42, chamber 27, opening 29 andthrough the delivery hose 81. At the same time, the right hand measuringvessel is emptying, the passage 58 establishes com. munication betweenthe pipes 78' and 79' so that air will be exhausted from the measuringvessel 7 and as long as this occurs, gasoline will flow under thesuction of the l vacuum being created 1n the vessel 7 from the gasolinetank 12 through the supply pipe 1.5' into the left handnessehji, If theo perator of the apparatus should failto move the handle `66 to itsupright neutral or intermediate position. ,by the time the gasolineflowing into the vessel 7' has reached a'level equal to the height ofthe overflow pipe 19',

the fioat valve '86' will be fioated and the communication of the pipe79 with the ves-'i sel 7 will be thereby automatically closed.

After the right hand measuring vessel has been emptied and the left handvessel has been filled, the handle 66 should be brought into its uprightneutral or intermediate position. In this position of the handle 66, thevalve plate 56 will be positioned so that the vented passage 59registers with the orifices 54 and 54 and air will be admitted to themeasuring vessels. Admission of air into the vessel 7 at this -time willcause the float valve 86' to drop and yall gasoline above the levelv ofthe upper end of the overflow pipe 19 will pass into said pipe 19',through the same`l into the pipe 20 into the supply pipe 15 and thenceback into the storage tank 12. It will thus be seen that the measuringof the gasoline is entirely automatic and is not variable for differentoperations of the apparatus. y

The left hand measuring vessel 7' being filled, should it be desired tohave its contents discharged, it is only necessa to move the handle 66to the left until thellxiig 67 engages the right hand edge ,of the stop68. The position of the valve plates 41 and 56 will in this position ofthe handle be the reverse of their positions when the handle wasI in itsright hand position. This new position of the valve plate 56 isindicated in Fig.

, 12 of the drawings and from this it will be seen that the passage 58then connects the pipes 78 and 79 into communication with each other sothat air will be exhausted from the outlet of the vessel 7' and thedelivery the left hand measuring vessel 7' has been thus emptied, thehandle 66 should .be brought to its upright neutral or intermediateposition so that the right hand vessel 7 may be vented and the excessliquid may overflow back into the storage tank in the manner describedin connection with the overflow operation of the left hand measuringvessel 7'. i

It is to be understood that when no gasoline is to be dispensed by wayof thedeliveryy yhose' 81, the handle v66 should be brought to itsupright neutral or intermediate Y1position..n With the handle in thisposition and the valveplates 41 and 56 in their corresponding neutral orintermediate ppsitions, should operation of the device discontinued foratime--such as at night, the door 3 should be closed and locked in anysuitable manner to provide against theft of gasoline and also againsttampering of the apparatus by unauthorized persons. Upon movement of thedoor 3 to its closed position, the link 91 will be moved rearwardlycausing the rock shaft 87 to be rocked, and a turning movement impartedto the stem 74 and valve plate 70. This new position ofthe valve plate70 causes the passages or openings 71 therein to register with thepassages 25 and 25' in the partition 23, which obviously opens theoutlets of the measuring vessels 7 and 7' into communication with thepipe 82 ,and permits whichever of said vessels that is filled withgasoline to have its contents conducted back into the pipe 15,through'the latter and back into the storage tank 12. As soon as-thedoor 3 is again opened, the valve plate 70 will be moved to the positionwherein the passages 25 and 25 will-be closed to communication with thepipe 82.

From the foregoing description, taken in connection with th'eaccompanying drawings, the construction, use and operation of theapparatus will be readily understood. It

tant feature of the apparatus, isthe `'novel construction by whichthegasoline is accurately measured in ,eithermof the `measuring vesselsand the elimination vof the possibility of leakage of the gasoline fromthe vessels after it has oncethus been measured.

Although thel construction and arrangement of the various parts of theapparatus are preferred to bein accordance with the above description'and with the accompany-r ingdrawngs, .yetmodication may well be ,madewithout departing from the principle of the invention, and yhence it isto be understood that this is permitted within the scope of the appendedclams.

What is claimed is:

1. In an apparatus of the class described, the combination of a storagetank, a pair of measuring vessels, means for causing liquid to iow fromsaid tank to said vessels, means-for conducting liquid in said vesselsin excess of al predetermined amount back into said tank, and meansoperableV to alternate positions for simultaneously allowing one vesselto empty and the first name means to operate to fill the other vesseland at the same` time preventing said excess liquid from passing out ofthe vessel being filled through the second named means, the last namedmeans being also operable to another position for permitting said excessliquid to pass out ot either vessel through the second named means andat the same time preventing filling and emptying of said vessels.

2. In an apparatus of the class described, the combination of a storagetank, a pair of measuring vessels, means for causing liquid to flow fromsaid tank to said vessels, means for conducting liquid in said vesselsin excess of a predetermined amount back into said tank, and meansoperable to alternate ositions for venting one vessel and allowing 1t toempty and simultaneously permitting the first named means to operate tofill the other vessel and at the same time preventing said excess li uidfrom passing out .of the vessel being lil ed through thesecond namedmeans, the last named means being' also operable Ito anotherposition-1for venting said vessels and permitting said excess liquid topass out of either vessel through the second named means and at the sametime preventing fillingand emptying of said vessels.

`3. In an apparatus of the class described, the combination of a storagetank, a pair of measuring vessels, suction means for causing liquid to-low from said tank to said vessels, and means operable as a unit .toalternate positions for venting and causing one vessel to empty and theaforesaid means to operate to simultaneously fill the other veel.

4. In an apparatus of the classdescribed, the combination of a storagetank,va pair of measuring vessels, suction means for causing liquid toflow from said tank to said vessels, means conducting liquid in saidvessels in excess of a predetermined amount back into said tank, andmeans operable to alternate positions for venting and causing one vesselto empty and the aforesaid means to operate to simultaneously fill theother vessel, the last defined means being operable to a neutralposition whereinl it causes said vessels to be vented to permit saidexcess liquid to pass out of either vessel.

recaer? 5. In an apparatus of the c la'ss described, the combination ofa storage tank, a pair of measuring vessels, suction means for causingliquid to flow from said tank to said vessels, means conducting liquidin said vessels in excess of a predetermined amount back into said tank,and means operable to alternate positions for ventingv and causing onevessel to empty and the aforesaid means to operate to simultaneouslyfill the other vessel, the last dened means preventing both vessels fromemptying simultaneously and said suction means from operating to tillboth vessels simultaneously, and said last defined means being operableto a neutral position wherein it causes `said vessels to be vented topermit said excess liquid to pass out of either vessel.

6. In an apparatus of the class described, the combination of a storagetank, a pair 0f measuring vessels, suction means for causing liquid toflow from said tank to said vessels, 'means conducting liquid in saidvessels' in excess of a predetermined amount back into said tank, andmeans operable to alternate positions for venting and causing one vesseltov empty and the aforesaid means to operate to simultaneously fill theother vessel, the last defined means being operable to a neutralposition wherein it causes said vessels to be vented to permit saidexcess liquid to pass out of either vessel, and said last defined meansbeing operable as a single unit.

7. In an apparatus of the class described, the combination of a pair ofmeasuring vessels provided yvith outlets, a storage tank for*"eupplying' said vessels, suction means for causing liquid to flow fromsaid tank to said gvessel"s, .means conducting liquid in said vessels inexcess of a predetermined amountback into said tank, combined suctionand vent pipes leading into said vessels, and valve mechanism disposedin the outlets of said vessels and interposed between said pipes vandsaid suction means, said valve mechanism being operable as a unit toalternate positions to vent one vessel b way of one of said pipes andopen its out et and to simultaneously open the other pipe leading intothe @ther vessel into communication with said suction` means, said valvemechanism being also operable to a neutral position,

lso

wherein it causes both of said vessels to be ery hose, a' two-way valveinterposed be-k I naeaeiv tween said hose and the outlets of saidvessels and being selectively operable to alternate positions to openthe outlet of one vessel into communication with said hose, said twowayvalve being also operable to .a neutral position wherein the outlets ofboth veels are closed, a valve interposed between said pipes and saidsuction means and being operable as a unit with said two-way valve toalternate positions to connect the pipe leading to the other vessel intocommunication with said suction means, the last defined valve beingprovided with an air vent movable to alternate i sitions intocommunication with the pipe leading into the first vessel, and said lastdefined valve being operable to a neutral position wherein-said air ventis opened into communication with the pipes leading to both vessels. 6

9. In an apparatus of the cla described the combination of a stora etank, a pair o measuring vessels, means or causin -liquid to flow fromsaid tank to said vesse s, a deliver hose, valve mechanism operablealternate y as a single unit for simultaneously causing one vessel toempty by way of said hose and said means to operate to fill the othervessel and bein operable to a neutral position wherein neit er vessel ispermitted to empty by way of said hose, valve mecha.- nism or causingthe li uid in said veels to be drained back into said tank, a singlecasing for enclosing both of said valve mechanisms, and means 'foroperating the last defined mechanism independently of the first definedmechanism, v v t 10. 'In an apparatus of the class described thecombination of a Stora e tank, a pair o measuringvessels, means`orcaiisinliquidto flow from said tank to said vesse a delivery hose,valve mechanism operable alternately as a single unit for simultaneouslycausing one vessel to empty by way of said hose and said means tooperate to fill the other vessel and bein operable to a neutralpositioifwherein neit er vessel is permitted to empty by way of saidhose, means whereby the liquid in said vessels ma be conveyed back intosaid tank, valve mec anism associated with the last defined means andbeing operable to alternate positions to'permit or prevent drainage ofsaid vessels by way of the latter, a sin le casing' enclosing bot ofsaid valve mec anisms, a housin enclosing parts of the apparatus incluing said valve mechanisms and having a movable door, and meansoperatively connectin the last defined valve mechanism with said oor.

11. In an apparatus of the class described, the combination of a storagetank, a pair of measuring vessels provided with outlets, means forcausing liquid to fiow from said tank to said vessels, a delivery hose,means whereb li uid in said vessels may be drain baci: into said tank,valve mechan'ism operable to alternate positions, to alternately 'opensaid outlets into communication with said hose and being operable to aneutral position wherein neither outlet is opened into communicationwith said hose, valve mechanism operable to alternate positions toalternately open and close said outlets into communication with the lastdefined means, a single casing enclosing both of said valve mechanisms,and means for operating the last defined valve mechanism independentlyof the first defined valve mechanism.

12. In an apparatus of the class described, the combination of a storagetank, a pair of measuring vessels, means to flow from said tank to saidvessels, a valve or causing liquid casing provided with two chambers,outlets A for said vessels leading to said casing at points adjacent toboth ofsaid chambers, a delivery hose leadin from one chamber, a drainpipe communicating with the other chamber for carrying liquid back intosaid tank, avvalve disposed in the 'first chamber and operable toalternate positions to alternately open said outlets into,communicationv with said hose and being operable to a neutral positionwherein neither outlet is opened into communication with said hose, avalve disposed in said other chamber and operable to alternate positionsto alternately open and close said outlets in to communication with saiddrain pipe, and means for operating the last defined valve independentlyof the first dened valve. l

I 13.111 an apparatus of the class described the combinationof a'Vstorage tank, 'a pairofmeasuring vessels, means or causing liquid to-flow from saidank to said vessels, 'a valve casing divided intermediateof its ends into two chambers, outlets f'or said vessels leading intothe intermediate rtion of said casing and communicatingy with both ofsaid chambers, a delivery hose leading from one chamber, a drain pi ecommunicating with. the other chamber or carrying li uid back into saidtank, a valve di d in t e first chamber and operable to a ternatepositions to alternately open said outlets into communication with saidhose and being operable to a neutral position wherein neither outlet isopen into communication with said hose, a valve disposed in the otherchamber and o erable to alternate positions to alternate y open andclose said outlets imo communication with said drain pipe, and means,for operating the last defined valve independently of the first definedvalve.

14. In an apparatus of the class described,

the combination of a storage tank, a pair of measuring vessels providedwith outlet means for causing liquid to flow from sai l' tank to saidvessels, mea'ns for conducting liquid in excess of a predeterminedamount back into said tank, vent pipes leading into said vessels, valvemechanism disposed in the outlets of said vessels and in said vent pipesand being operable as a unit to alternate positions to vent one vesselby way of one of said pipes and open its outlet and to simultane- -ouslpermit the first named means to operate to l the other vessel, saidvalve mechanism being also operable to a neutral position wherein itcauses both of said vessels to be vented by way of said pipes to permitsaid eX- cess liquid to pass out of either vessel through the secondnamed means, a drain pip'efor conducting the liquid in said vessels backinto said tank, and a valve interposed between the outlets of saidvessels and said drain pipe and being operable to alternate positions toalternately open and close said outlets into communication with saiddrain pipe, and means for operating said valve independently of saidvalve mechanism.

15. In a valve mechanism of the class de-l scribed, the cdmbination of acasing having a chamber into which lead a pair of induction openings andan eduction opening, and being provided independent of said chamber andsaid openings with two sets of compnion ports, a valve disposed in saidchamr and being operable to alternate positions to alternately establishcommunication between one induction opening and ysaid eduction openinand being also operable to a neutral position wherein both inductionopenings are closed, and a member provided with a connecting passage anda vent passage and being operable as a unit with said valve to alternatepositions to alternately connect the ports of one of said sets togetherby way of said connectingA passage and at the same time tovent one portof the other set by way of said vent passage, said member also beingoperable to a neutral position wherein one port of each set is vented bywayo said vent passage. v

16. lin a valve mechanism of theclass described, the combination of acasing having a chamber into which a pair of induction openings and aneduction opening lead and being provided independent of said chamber andsaid openings with two sets of comanion ports, a valve disposed in saidchamr and being operable in opposite directions toalternately establishcommunication between one induction opening andY said eduction openingand also being operable to an intermediate position wherein bothinduction openings are closed, and a member provided with a connectingpassage and a vent passage and being operable as a unit with said valvein opposite directions to alternately connect the ports of one or" saidsets together by way of said connecting passage and at the saine time tovent one port ot' the other set by way of said-went passage, said memberbeing also operable to an innecesi? termediate position wherein one portof each set is vented by way Yof said vent passage.

17 In a Valve mechanism of the class described, the combination of acasing having a chamber into which lead a pair of induction openings andan eduction opening and being provided independent of said chamber andsaid openings with two sets of companion ports, a valve turnably mountedin said chamber and being movable in Opposite directions to alternatelyestablish communication between one induction opening and said eductionopening and bein operable t0 an intermediate position wherein bothinduction openings are closed, and a member provided with a connectingpassage andi-a vent passage and being turnable as a unit with said valvein opposite directions to alternately connect the ports of one of saidSets together by way of said connecting passage and at the same time tovent one port ofthe other set by way of said vent passage, said memberbeing operable to an intermediate position wherein one port of each setis vented by way of said vent passage.

18. In a valve mechanism of the class described, the combination of acasing having a chamber into which leada pair of induction openings andan eduction opening, one end of said casing being provided independentof said chamber and said openings with two sets of companion pipereceiving ports, a valve turnablymounted in said chamber and beingmovable in opposite directions to alternately establishcommunicationbetween gne induction opening and said eduction -opening`and being operable to an intermediate position wherein both inductionopenings are closed, a plate bearing against said end of said casing andprovided on its -inner side with a connecting passage and a ventedpassage, and being turnable in opposite directions to alternatelyconnect the ports of one of said sets together by way oi said connectingpassage and at the same time t0 vent one port of the. other set by wayof said vented passage, said member being operable to an intermediateposition where'- in one port of each setis vented by way of said ventedpassage, and means for connecting said plate to said valve to operate inunison therewith.

19. ln a valve mechanism of the class de"- scribed, the combination of acasing having a chamber into which lead a pair of induction openings andan eduction opening, one end portion of said casing being-'providedindependent oif said chamber with two sets of laterally extendingcompanion pipe receiving ports having outwardly longitudinally extendingorices, a valve turnably mounted in said chamber and being movable inopposite directions to alternately establish communication between oneinduction naeaer? opening and said eduction opening and beoperable to anintermediate position wherein both induction openin are closed, a plate'mounted to bear against said end ortion of said casing and provided onits inner side with an arcuate connecting passage and an arcuate ventedpassage, and being turnable in opposi-te directions to alternately.cause said connecting passage to reg- I ister with orifices of theports of one set and at the same time to cause said vented passage toregister with an orifice of one port of the other set, said plate beingoperable to an intermediate position wherein said vented passageregisters with an orifice of one port of each set, and means forconnecting said plate to said valve to operate iu yunison therewith.

: `20. In a valve mechanism of the class described, the combination of acasing having tions to alternately establish communication between oneinduction opening and said eduction opening and being operable to anintermediate position wherein both induction openings are closed, aplate mounted to bear against said end portion of said casing andprovided on its inner side with an arcuate connecting passage concentricto the longitudinal axis of said casing on a radius equal to thedistance which thefirst defined orifices are from said axis and beingalso provided with arcuate vented passa concentric to said axis on aradius equa to the distance which the last defined orifices are fromsaid axis, said plate being turnable in opposite directions tolalternately cause said connecting passage to register with the firstdefined orifices of the ports of one set and at the same time to causesaid vented passage to register with the last defined orifices of oneport of the other set, said plate being operable to an intermediateposition wherein said vented passage registers with the last definedorifices of both sets, and means? for connecting said plate to saidvalve to .operate in unison therewith.

2l. I a valve mechanism of the Vclass de scribed,`thel combination of acasing provided vivitlaif-pair of valvev seats, a pair o turnableYvalves seated upon said seats, one of said valves being yieldably seatedagainst its seat, means for turning one valve and including an axialstem, a laterally extendingvarm carried by said stem, and aneccentrically located member extending from the other Valve insubstantially parallel relation to said stem and having a slidableconnection with said arm.

22. In a valve mechanism of the class described, the combination of acasing provided with a valve seat on the interior thereof and another.valve seat on the exterior thereof, a pair of turnable valve platesseated upon said seats, one of said plates being yieldably seated, astem connected to the interior valve plate for turning the same, saidstem extending to the exterior of 'said casing, and means connecting theexterior valve plate to said stem'to cause said exterior valveplate tobe turned in unison with the interior valve plate, said means.

permitting longitudinal yielding of the one valve plate withoutunseating the other.

23. In a valve mechanism of the class described, the combination of acasing provided With a valve seat on the interior thereof and anothervalve seat on the exterior thereof, a pair of turnable valve platesseated uponsaid seats, the interior valve plate being yieldably seated,an operating stem connected to the interior valve platev and beingadapted to yield therewith, said stem extending through a wall of saidcasing and being turnably and slidably mounted in said wall, and meansconnecting the exterior valve plate to said stem to cause said exteriorvalve plate to be turned in unison with the interior valve plate, saidmeans permitting said stem to yield longi-` tudinally Without causingsaid exterior valve plate to unseat.

24. In a valve mechanism of the class described, the combination of acasing having a chamber provided at one end with an interior valve seatand at lthe other end with an exterior valve seat,'turnabl e valveplates seated upon said seats, an operating stem connected to theinterior valve plate, said stem extending through said other end of saidchamber and being turnably and slidably mounted therein, spring meansinterposed between said other end of said chamber and said valveplatesto yieldably maintain them seated against their respective seats, andmeans connecting the exterior valve plate to said stem to cause saidexterior valve plate to be turned in unison with the interior valveplate, said means permitting said stem to yield longitudinally withoutcausing said exterior valve plate to unseat.

25. In a valve mechanism of the class described, the combination of acasing havf ing a chamber provided at one end with an,

interiorvalve seat and at the other end with an exterior valve seat, aplug carried byv said other end of said casing and adjustablelongitudinally therewith, turnable valve plates seated upon said seats,an operating stem carried by the interior valve plate. said stomextending through said plug and being turnably and slidably mountedtherein, a collar carried by said plug on the exterior of said chamberand being mounted for longitudinal adjustment on said plug, spring meansinterposed between said plug and interior valve plate to maintain thelatter yieldably seated against its seat. springmeans interposed betweensaid collar and the exterior valve plate to maintain the latter seatedagainst its seat, and means connecting the exterior valve plate to saidstem to cause said exterior valve plate to be turned in unison with theinterior valve plate` the last defined means permitting rela-I tivelongitudinal yielding of said stem and the exterior valve plate.

26. In a valve mechanism of the class described, the combination of acasing having a chamber provided at one end with an interior valve seatand at the other end with an exterior valve seat, a plug threaded insaid other end of said chamber and having a portion extending outwardlytherebeyond, a collar threaded upon said outwardly extending portion ofsaid plug` turnable valve plates seated upon said seats, an operatingstem carried by the interior valve plate, said stem extending throughsaid'plug and beingr snugly turnably and slidably mounted therein,spring means interposed between said plug and the interior valve plateto maintain the latter yieldably seated against its seat, spring meansinterposed between said collar and the exterior valve plate to maintainthe latter seated against its seat,

and means connecting the exterior valve plate to said stem to causevsaid exterior valve plate to be turned in unison with the interior-valve plate, the last defined means permitting relative yielding ofsaid stem and the exterior valve plate.

27. In a valve mechanism of the class described, the combination of acasing having two chambers into which lead a common induction opening,said chambers being provided with individual eduction openings, andindependently operable valves mounted in said casing for controlling thecommunication of said induction opening with said chambers.

28. In a valve mechanism of the class described, the combination of acasing having two chambers into which lead a pair of common inductionopenings, lsaid chambers recaer? being provided with individual eductionopenings. a valve turnably mounted in one chamber and provided with apassage leading into the latter, said valve being operable to alternatepositions to selectively cause Said passage to register with one of saidinduction openings, and another valve turnably mounted in the otherchamber and provided with a passage leading into said other chamber.said other valve being operable to alternate positions for controllingthe communication of its passage with said induction openings.

29. In a valve mechanism of the class described. the combination or" acasing provided intermediate'ot its ends with a transverse partitiondividing it into two chambers. said casing having a pair of inductionopenings leading therein adjacent saidv partition. said partition beingprovided with passages leading from said induction openings into saidchambers, said chambers being provided with individual eductionopenings, and valves mounted in said casing for controlling thecommunication of said passages with said chambers.v

30. In a valve mechanism ot the class described, the combina-tion of acasing provided intermediate of its ends with a transverse partitionwhich is cast integral therewith. said casing having a pair ofoppositely disposed induction openings leading thereinto at a pointadjacent said partition, the latter being provided with passages leadingfrom said induction openings into said chambers, said chambers' beingprovided with individual eduction openings, and valves mounted in saidcasing for controlling the communication of said passages and inductionopenings with said chambers.

. 31. In a valve mechanism of the class described, the combination of acasing having'v two chambers into which lead a pair of common inductionopeningsand being provided with interior valve seats, said chambersbeing further provided with individual eduction openings, an exteriorvalve seat onl said casing, independent valves mounted in said chambersand seated upon said interior valve seats for controlling thecommunication of said induction openings with said chambers, a valvemounted uponsaid casing and seated upon exterior valve seat, and meansoperatively connecting said exterior valve to one of the interior valvesso as to cause these valves to be operated inunison.

In testimony whereof I have hereunto set my hand. v f

JOHN A. BRYDEN.

